A large of energy consumption is required for indoor and outdoor personal heating to ameliorate the comfortable and healthy conditions.Main personal thermal management strategy is to reflect mid-infrared human body ra...A large of energy consumption is required for indoor and outdoor personal heating to ameliorate the comfortable and healthy conditions.Main personal thermal management strategy is to reflect mid-infrared human body radiation for human surface temperature(THS)regulation.We demonstrate a visible Janus light absorbent/reflective air-layer fabric(Janus A/R fabric)that can passively reflect radiative heating meanwhile can actively capture the solar energy.A series of azobenzene derivatives functionalized with alkyl tails are reported to co-harvest the solar and phase-change energy.The THS covered by Janus A/R fabric can be heated up to~3.7°C higher than that covered by air-layer fabric in cold environment(5°C).Besides,integrating the thermo-and photo-chromic properties is capable of monitoring comfort THS and residue energy storage enthalpy,respectively.According to the colour monitors,intermittent irradiation approach is proposed to prolong comfortable-THS holding time for managing energy efficiently.展开更多
基金support of National Natural Science Foundation of China(21975107)Natural Science Foundation of Jiangsu Province(SBK2019020945)+2 种基金National First-Class Discipline Program of Light Industry Technology and Engineering(LITE2018-21)Postgraduate Research&Practice Innovation Program of Jiangsu Province(KYCX20_1783)China Scholarship Council(202006790096).
文摘A large of energy consumption is required for indoor and outdoor personal heating to ameliorate the comfortable and healthy conditions.Main personal thermal management strategy is to reflect mid-infrared human body radiation for human surface temperature(THS)regulation.We demonstrate a visible Janus light absorbent/reflective air-layer fabric(Janus A/R fabric)that can passively reflect radiative heating meanwhile can actively capture the solar energy.A series of azobenzene derivatives functionalized with alkyl tails are reported to co-harvest the solar and phase-change energy.The THS covered by Janus A/R fabric can be heated up to~3.7°C higher than that covered by air-layer fabric in cold environment(5°C).Besides,integrating the thermo-and photo-chromic properties is capable of monitoring comfort THS and residue energy storage enthalpy,respectively.According to the colour monitors,intermittent irradiation approach is proposed to prolong comfortable-THS holding time for managing energy efficiently.
